Reveal Math Lesson 2.5

Reveal Math: Lesson 2-5 Addition Patterns

S

Fill in the Blanks

1. The mystery number is a 2-digit number.

2. The mystery number is even.

3. The mystery number is between 30 and 50.

4. The mystery number has a 4 as one of its digits.

5. The sum of the digits is 12.

The mystery number is?

Even numbers: 0, 2, 4, 6, 8

Some text here about the topic of discussion

Odd numbers: 1, 3, 5, 7, 9

Some text here about the topic of discussion

Sum: the result of adding two or more numbers. The answer to an addition problem.

​When you add two even numbers, the sum is even.

246 + 100 = 346

432 + 224 = 656

318 + 480 = 798​

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Subject | Subject

Some text here about the topic of discussion

Draw

Write an equation with 3-digit numbers that show even + even = even.

​When you add two odd numbers, the sum is even.

547 + 155 = 702

325 + 631 = 956

421 + 273 = 694​

Subject | Subject

Some text here about the topic of discussion

Draw

Write an equation with 3-digit numbers that show odd + odd = even.

​When you add an even number and an odd number, the sum is odd.

272 + 723 = 995

546 + 231 = 777

647 + 244 = 891​

Subject | Subject

Some text here about the topic of discussion

Draw

Write an equation with 3-digit numbers to show even + odd = odd.

Fill in the Blanks

What is the sum of 486 + 123 =?

Fill in the Blanks

What is the sum of 154 + 272 =?

Poll

Reflect on your learning.

• I'm confused

• I'm still learning

• I understand

• I can teach someone else.